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#1 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() Hi all members, I'm Antonio and I write my first post from Italy. I will explain my problem: I have a notebbok TERRA MOBILE 1541H with cpu i7 4712mq with motherboard Clevo 6-71-W2W50-D02 which, when switched on,black screen. has start LED on, working CD-DVD, hard disk that can be heard spinning, fan stopped and CPU which naturally heats up. So what's the problem? Corrupted bios or burnt motherboard?
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#2 |
Badcaps Veteran
Join Date: Oct 2020
City & State: Wangerland
My Country: Deutschland
Line Voltage: 230VAC 50Hz
I'm a: Hobbyist Tech
Posts: 317
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![]() Open the Laptop, visual inspection, Voltage at all coils present? If yes, I'd indeed start with BIOS Firmware.
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#3 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() Ok. Thanks for the reply. As soon as I have free time check.
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#4 |
Member
Join Date: Apr 2020
City & State: Italy
My Country: Italy
I'm a: Knowledge Seeker
Posts: 41
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![]() I don't know if it may be useful, but i attach the service manual of a similar models.
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#5 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() This is photo motherboard . On the two chips near the PCH there are just a few numbers and that's it.
Last edited by antppe; 11-20-2021 at 06:43 AM.. Reason: insert photo |
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#6 | |
Member
Join Date: Apr 2020
City & State: Italy
My Country: Italy
I'm a: Knowledge Seeker
Posts: 41
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![]() Quote:
If they correspond to U15 and U16 then they are Main bios and EC. Even if the name doesn't mach the schematics, try to check with a microscope or a magnifier the code over the top so you can identify what is it. Last edited by speggio91; 11-20-2021 at 07:39 AM.. |
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#7 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() The abbreviation on the one highlighted is 2940S - A
423QB the other has the initials 20N03 3M01 |
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#8 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
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#9 |
Super Moderator
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,734
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#10 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() I found these on the EN25QH32 manual
EN25QH64 |
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#11 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() only these two are 8-pin
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#12 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() only these two are 8 pin
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#13 |
Super Moderator
Join Date: Jan 2018
City & State: York
My Country: UK
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#14 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() Here are the pictures you asked for
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#15 |
Super Moderator
Join Date: Jan 2018
City & State: York
My Country: UK
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#16 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
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![]() This is pictures of the chips on the motherboard
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#17 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
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Posts: 24
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![]() With the phone they do not come well, this is the same as the card that is in my possession
Last edited by piernov; 11-26-2021 at 03:47 AM.. Reason: google translate |
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#18 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() I think these are better
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#19 |
Member
Join Date: Nov 2021
City & State: Pagani
My Country: Italia
I'm a: Knowledge Seeker
Posts: 24
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![]() These in the photo are the only 8-pin chips that could contain the bios
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#20 |
Super Moderator
Join Date: Jan 2018
City & State: York
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